The role of carbon in catalytically stabilized transition metal sulfides

被引：41

作者：

Kelty, S. P.

Berhault, G.

Chianelli, R. R. ^{[1
]}

机构：

[1] Univ Texas, Dept Chem, El Paso, TX 79912 USA

[2] Seton Hall Univ, Dept Chem & Biochem, Ctr Computat Res, S Orange, NJ 07079 USA

[3] Inst Rech Catalyse, CNRS, F-69626 Villeurbanne, France

来源：

APPLIED CATALYSIS A-GENERAL | 2007年 / 322卷

关键词：

transition metal sulfides; carbides MOS2; MOSxCy; RuSxCy; CoMoC; NiMoC;

D O I：

10.1016/j.apcata.2007.01.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Since WWII considerable progress has been made in understanding the basis for the activity and the selectivity of molybdenum and tungsten based hydrotreating catalysts. Recently, the focus of investigation has turned to the structure of the catalytically stabilized active catalyst. The surface of the catalytically stabilized MoS2, has been shown to be carbided with the formula MoSxCy under hydrotreating conditions. In this paper we review the basis for this finding and present new data extending the concept to the promoted TMS (transition metal sulfides) systems CoMoC and NiMoC. Freshly sulfided CoMoS and NiMoS catalyst have a strong tendency to form the carbided surface phases from any available carbon source. (c) 2007 Elsevier B.V. All rights reserved.

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页码：9 / 15

页数：7

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